Rotary power generating apparatus and electric generating apparatus

ABSTRACT

Obtaining of a secure reciprocation of piston magnets and enhance the continuity to obtain a continuous rotary power. The rotary power generating apparatus has the first, second piston magnet members the first, second connecting rods the crankshaft the first, second guide members and the first, second fixed magnet members and it has the demagnetizing member including the demagnetizing rotating board. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces having the same polarity, opposes each other. The demagnetizing rotating board has demagnetizing magnet parts, having magnetic forces weaker than the magnetic poles of the top pole surfaces a and different from the polarity of the top pole surfaces and the non-magnetic force parts.

TECHNICAL FIELD

The present invention relates to a rotary power generating apparatuswhich generates rotary power utilizing repulsive forces of a permanentmagnet and an electric generating apparatus which generates electricpower with the rotary power.

BACKGROUND ART

Permanent magnets have property which repulse each other with approachof the same magnetic poles and attract each other with the approach ofthe different magnetic poles. Formerly, an idea, which a linear motionof a member is generated by utilizing a force which permanent magnetsrepulse each other (repulsive force) or a force which permanent magnetsattract each other (attractive force), and try to convert the linearmotion to a rotary motion of another member, is known.

For example, as illustrated in FIG. 24, a magnetic force movementapparatus, having a structure which a piston magnet 301, fixed magnets302, a connecting rod 303, a crankshaft 304 and coil springs 305 areaccommodated in a cylinder 300, is disclosed in patent document 1. Thepiston magnet 301 and the crankshaft 304 are connected with both sidesof the connecting rod 303 respectively, and fixed magnets 302, 302 areaccommodated in both sides of top dead center and bottom dead center soas to repulse with the piston magnet 301 each other, and coil springs305, 305 are accommodated outside of them, in the magnetic forcemovement apparatus.

Further, as illustrated in FIG. 25(a), a magnetic force applied powerunit, having a structure which a piston magnet 401 is accommodated in acylinder 400, and a crankshaft 402 is arranged outside the cylinder 400,a rotating circular shaped magnet 403 is arranged on the opposite side,is disclosed in patent document 2. In this magnetic force applied powerunit, the piston magnet 401 is connected to the crankshaft 402 via aconnecting rod 404, and the crankshaft 402 is connected to the circularshaped magnet 403 via a gear and shaft.

Furthermore, as illustrated in FIG. 26, a power transmitting machinery,having a structure which piston magnets 501, 501 are accommodated incylinders 500, 500, and a crankshaft 502 is arranged outside thecylinders 500, 500, a rotary board 504 having fixed magnets 503, 503 isarranged on the opposite side, is disclosed in patent document 3. Inthis power transmitting machinery, the piston magnets 501, 501 areconnected to the crankshaft 502 via connecting rods 505, 505, and amotor 506 is connected with the rotary board 504.

PRIOR ART DOCUMENTS Patent Documents

Patent Document 1: JPH 8-168279

Patent Document 2: JP2011-43157

Patent Document 3: Registered Utility Model 3180748

Patent Document 4: JP2002-54555

SUMMARY OF INVENTION Problem to be Solved by the Invention

As described above, power apparatuses, which a reciprocation of thepiston magnet in the cylinder is made by utilizing the repulsive forceor the attractive force of the magnet, and try to convert thereciprocation to a rotary motion of the crankshaft, are conventionallyknown.

By the way, the rotary motion of the crankshaft has to be continuousmotion for getting effective rotary motion using these kinds of thepower apparatuses. That needs repeated reciprocation of the pistonmagnet in the cylinder.

However, power apparatuses, disclosed in each above-described patentdocument, have following problems.

First, in case of the power apparatus disclosed in patent document 1, itis impossible that repulsive forces between the piston magnet 301 andthe fixed magnet 302 operate in the same way from both top dead centerside and bottom dead center side, because all of the piston magnet 301,the connecting rod 303 and the crankshaft 304 are accommodated in thecylinder 300. Therefore, even if the piston magnet 301 receivesrepulsive force by the fixed magnet 302 on the top dead center side tomove to the bottom dead center side, the piston magnet 301 never returnto the top dead center side with receiving similar repulsive force.Therefore, it is impossible to get continuous rotary power, becausereciprocation of the piston magnet 301 is not able be obtained.

Further, in case of the power apparatus disclosed in patent document 2,the circular shaped magnet 403 is formed of a combination of the twohalf-circular shaped magnets 403 a, 403 b, as illustrated in FIG. 25(b). However, different poles are disposed on the surface of the sameside of the circular shaped magnet 403 in each half-circular shapedmagnets 403 a, 403 b. Then, the rotation of the circular shaped magnet403 causes operations of the alternate repulsive force and attractiveforce, thereby it tries to repeat going away and approach of the pistonmagnet 401.

However, for example, even if the repulsive force operates on the pistonmagnet 401 from one half-circular shaped magnet 403 a, the attractiveforce operates on the piston magnet 401 from the other half-circularshaped magnet 403 b. Therefore, both the repulsive force and attractiveforce operate on the piston magnet 401 at the same time. Then, when therepulsive force makes the piston magnet 401 go away from the circularshaped magnet 403, the attractive force needs to be stronger than therepulsive force for return of the piston magnet 401 to the originalposition, because the interval of the piston magnet 401 and the circularshaped magnet 403 extends.

However, that needs repulsive force which is able to overcome theattractive force for going away the piston magnet 401. Eventually, it isimpossible to get continuous rotary power, because reciprocation of thepiston magnet 401 is not able be obtained by rotation of the circularshaped magnet 403.

Further, in the power transmitting machinery disclosed in patentdocument 3, the magnets 503, 503 fixed on the rotary board 504 approachto the piston magnets 501, 501 alternately to change polarity of themagnet to operate on the piston magnets 501, 501, thereby it makes therepulsive force and attractive force operate on the piston magnets 501,501 alternately.

However, even if the power transmitting machinery, operation of theattractive force which is stronger than the repulsive force needs forreturn of the piston magnets 501, 501, which once gone away, to theoriginal position. Furthermore, because when one piston magnet 501 isattracted by one magnet 503, the other magnet 503 having differentpolarity tries to go away the piston magnet 501, repulsive force andattractive force due to the magnets 503, 503 collide with each other.Therefore, it is difficult to get continuous reciprocation of the pistonmagnets 501, 501.

On the other hand, an apparatus, which tries to go away and bring nearthe piston magnet by repetition of insertion and pulling out of an ironplate between the piston magnet and the fixed magnet whose the samemagnetic poles are opposing each other, is disclosed in Patent Document4.

However, pulling out of the iron plate become to be difficult, becausethe iron plate is attracted from both the piston magnet and the fixedmagnet, when the iron plate is inserted between the piston magnet andthe fixed magnet. Further, even if the iron plate is inserted betweenthe piston magnet and the fixed magnet, the iron plate is not able tocut off magnetic force because the iron plate is ferromagneticsubstance. So, the reciprocation of the piston magnet is not able to beobtained.

Further, following problem has not been solved because the surfaces ofthe piston magnet and the fixed magnet which oppose each other (opposingsurface) are arranged in parallel.

In general, lines of magnetic force, which appear from the permanentmagnet, draw loop-shaped lines illustrated in FIG. 27. Therefore, ifopposing surfaces 601 a, 602 a having same magnetic pole (N-pole in FIG.28) of the fixed magnet 601 and the piston magnet 602 are opposing inparallel, repulsive forces having the same strength operate in Xdirection and Y direction, as illustrated in FIG. 28. Then, because thepiston magnet 602 is connected to the rotating crankshaft, when thepiston magnet 602 leaves from the closest position to the fixed magnet601, the opposing surfaces 602 a moves so as to move an extremely littlein parallel along the opposing surfaces 601 a.

Then, when the opposing surface 601 a and the opposing surface 602 aapproach each other with keeping parallel condition, the repulsiveforces operate in the direction which they try to go away both the fixedmagnet 601 and the piston magnet 602 along the central axis directionthough, the repulsive forces do not operate easily in the directionwhich the opposing surface 602 a moves in parallel along the opposingsurfaces 601 a. Therefore, because the effective repulsive forces do notoperate easily to the motion which the piston magnet 602 tries to goaway from the fixed magnet 601, it is difficult to continue thereciprocation.

As described above, because the reciprocation of the piston magnet isnot able to be obtained from the above-described conventional powerapparatuses, there is a problem which continuous rotary power is notable to be obtained.

The present invention is made to solve the above problems, and it is anobject to provide a rotary power generating apparatus which thereciprocation of the piston magnet is able to be obtained surely and thecontinuity of the reciprocation is able to be enhanced, thereby thecontinuous rotary power is able to be obtained, and the electricgenerating apparatus which generates electric power with the rotarypower.

Means for Solving the Problem

To solve the above problem, the present invention is a rotary powergenerating apparatus including: a first piston magnet member and asecond piston magnet member arranged so that their polarities ofmagnetic poles of a top dead center side are equal and top pole surfacesof the top dead center side face the same direction; a first connectingrod and a second connecting rod connected with the bottom dead centerside of the respective first, second piston magnet members; a crankshaftconnected with the first, second connecting rods; a first guide memberand a second guide member, which hold respectively the first, secondpiston magnet members from outside and guide the respective first,second piston magnet members during all process of reciprocation; afirst fixed magnet member and a second fixed magnet member fixed on thepositions to keep a constant interval from the top pole surfaces of therespective first, second piston magnet members, and in which fixed polesurfaces, having the same polarity with the magnetic pole of the toppole surfaces, are arranged so as to oppose the top pole surfaces of therespective first, second piston magnet members; and a demagnetizingmember arranged between the top pole surfaces of the first, secondpiston magnet members and the fixed pole surfaces of the first, secondfixed magnet members, and having a demagnetizing rotating board opposingthe top pole surfaces both of the first, second piston magnet members,the demagnetizing rotating board includes demagnetizing magnet parts andnon-magnetic force parts arranged both of a lower surface opposing thetop pole surfaces and upper surface opposing the fixed pole surfaces,the demagnetizing magnet parts have magnetic forces weaker than themagnetic poles of the first, second piston magnet members and havingdifferent polarity from the top pole surfaces, the non-magnetic forceparts, having no magnetic force, are formed adjacent to thedemagnetizing magnet parts, and oppose to only one of the first, secondpiston magnet members; the rotary power generating apparatus including:a repulsive force unequal structure which a hindmost interval, arrangedhindmost position along a rotating direction which the crankshaftrotates, is spread than an interval of another part to weaken arepulsive force repulsing the top pole surfaces and the fixed polesurfaces in the hindmost position than the repulsive force in anotherpart, in the top pole surfaces of the respective first, second pistonmagnet members and the fixed pole surfaces of the respective first,second fixed magnet members; the rotary power generating apparatusfurther including: an auxiliary motor supplying power to the crankshaftso that reciprocation of the first, second piston magnet members becomecontinuous.

In the above-described rotary power generating apparatus, repulsiveforce operates between the first, second piston magnet members and thefirst, second fixed magnet members, and the repulsive force is able tobe reduced with the demagnetizing rotating board.

Further, in case of the above-described rotary power generatingapparatus, it is possible that the demagnetizing magnet parts includes astrong demagnetizing part having a strongest magnetic force, a weakdemagnetizing part having a weakest magnetic force, a middledemagnetizing part having magnetic force in the middle of the strongdemagnetizing part and the weak demagnetizing part, and a magnetic forcechanging structure which the strong demagnetizing part, middledemagnetizing part and weak demagnetizing part are arranged sequentiallyalong the rotating direction of the demagnetizing rotating board so thatthe magnetic force changes to become strong gradually along theperipheral direction, the demagnetizing rotating board is formed so thatthe strong demagnetizing part and the non-magnetic force part opposerespectively one of the first, second piston magnet members.

Further, in case of the above-described rotary power generatingapparatus, it is possible that the demagnetizing member has a rotatingshaft rotates the demagnetizing rotating board around the center, thedemagnetizing member includes bevel gears formed on the edge part of therotating shaft and the crankshaft respectively, and the bevel gearsengage with each other, the bevel gears are formed so that the first,second piston magnet members reciprocate respectively inside the first,second guide members during one rotating of the demagnetizing rotatingboard in the rotating shaft; the bevel gear of the demagnetizing memberengages with the bevel gear of the crankshaft so that the second pistonmagnet member reaches the bottom dead center at the moment when thefirst piston magnet member reaches the top dead center, and immediatelyafter that, in the demagnetizing rotating board, a part between thefirst piston magnet member and the first fixed magnet member changesfrom the demagnetizing magnet parts to the non-magnetic force parts, andthe demagnetizing magnet parts are arranged between the second pistonmagnet member and the second fixed magnet member.

Furthermore, in case of the above-described rotary power generatingapparatus, it is preferable that the first, second guide members have agap part, connecting inside with outside, formed in all range ofreciprocation of the first, second piston magnet members.

Further, it is preferable that the demagnetizing rotating board includesa circular band-shaped structure which the demagnetizing magnet partsand the non-magnetic force parts are formed in circular band-shape.

Further, it is possible that the first, second piston magnet membersrespectively includes holding cases having a size of being accommodatedinside the first, second guide members, and permanent magnets beingfitted inside the holding cases without gap, the first, second fixedmagnet members respectively includes for-fixing holding cases having thesame size with the holding cases, and permanent magnets being fittedinside the for-fixing holding cases without gap, the first, second fixedmagnet members are fixed with a adjusting member for adjusting amounting state of the for-fixing holding cases.

Further, in case of the above-described rotary power generatingapparatus, it is preferable that the rotary power generating apparatusincluding: a first engine part, second engine part respectively havingthe first, second guide members, the first, second piston magnetmembers, the first, second fixed magnet members, the first, secondconnecting rods, the demagnetizing member and the crankshaft, thecrankshaft of the first engine part and the crankshaft of the secondengine part are formed with a common crankshaft being common to thefirst, second engine part.

Further, the present invention provides an electric generating apparatusincluding: a rotary power generating apparatus; and a generator, whichgenerates an electric power with a rotary power generated by the rotarypower generating apparatus, the rotary power generating apparatusincluding: a first piston magnet member and a second piston magnetmember arranged so that their polarities of magnetic poles of a top deadcenter side are equal and top pole surfaces of the top dead center sideface the same direction; a first connecting rod and a second connectingrod connected with the bottom dead center side of the respective first,second piston magnet members; a crankshaft connected with the first,second connecting rods; a first guide member and a second guide member,which hold respectively the first, second piston magnet members fromoutside and guide the respective first, second piston magnet membersduring all process of reciprocation; a first fixed magnet member and asecond fixed magnet member fixed on the positions to keep a constantinterval from the top pole surfaces of the respective first, secondpiston magnet members, and in which fixed pole surfaces, having the samepolarity with the magnetic pole of the top pole surfaces, are arrangedso as to oppose the top pole surfaces of the respective first, secondpiston magnet members; and a demagnetizing member arranged between thetop pole surfaces of the first, second piston magnet members and thefixed pole surfaces of the first, second fixed magnet members, andhaving a demagnetizing rotating board opposing the top pole surfacesboth of the first, second piston magnet members, the demagnetizingrotating board includes demagnetizing magnet parts and non-magneticforce parts arranged both of a lower surface opposing the top polesurfaces and upper surface opposing the fixed pole surfaces, thedemagnetizing magnet parts have magnetic forces weaker than the magneticpoles of the first, second piston magnet members and having differentpolarity from the top pole surfaces, the non-magnetic force parts,having no magnetic force, are formed adjacent to the demagnetizingmagnet parts, and oppose to only one of the first, second piston magnetmembers; the rotary power generating apparatus including: a repulsiveforce unequal structure which a hindmost interval, arranged hindmostposition along a rotating direction which the crankshaft rotates, isspread than an interval of another part to weaken a repulsive forcerepulsing the top pole surfaces and the fixed pole surfaces in thehindmost position than the repulsive force in another part, in the toppole surfaces of the respective first, second piston magnet members andthe fixed pole surfaces of the respective first, second fixed magnetmembers; the rotary power generating apparatus further including: anauxiliary motor supplying power to the crankshaft so that reciprocationof the first, second piston magnet members become continuous.

Effect of the Invention

As described above, the present invention provides the rotary powergenerating apparatus which the reciprocation of the piston magnet isable to be obtained surely and the continuity is able to enhanced, andthereby continuous rotary power is able to be obtained, and the presentinvention provides the electric generating apparatus which generateselectric power with the rotary power.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view illustrating the rotary power generatingapparatus according to an embodiment of the present invention;

FIG. 2 is a sectional view of the rotary power generating apparatustaken along the line 2-2 in FIG. 1;

FIG. 3 is a plan view illustrating the rotary power generating apparatuswhich the lid part is removed;

FIG. 4 is a perspective view illustrating a principal part of ademagnetizing member and crankshaft;

FIG. 5 (a) is a plan view illustrating the demagnetizing member, FIG. 5(b) is a view illustrating a changing pattern of a demagnetizing magnetpart and non-magnetic force part in the demagnetizing member;

FIG. 6 is a sectional view of the demagnetizing member taken along theline 6-6 in FIG. 5 with a part of it omitted;

FIG. 7 is a plan view illustrating the rotary power generating apparatuswhich the lid part and demagnetizing member are removed;

FIG. 8 is a perspective view illustrating a first guide member, a firstpiston magnet member and first fixed magnet member, with parts of themomitted;

FIG. 9 is a side elevation view of an engine part, of the first pistonmagnet member side, seen from a direction intersecting the crankshaft;

FIG. 10 (a) is a view schematically illustrating the first piston magnetmember, the first fixed magnet member and a demagnetizing rotatingboard, immediately after the first piston magnet member reached thebottom dead center, FIG. 10 (b) is a view schematically illustrating theprincipal part of the demagnetizing rotating board at that time;

FIG. 11 (a) is a view schematically illustrating the first piston magnetmember, the first fixed magnet member and the demagnetizing rotatingboard subsequent to those in FIG. 10 (a), FIG. 11 (b) is a viewschematically illustrating the principal part of the demagnetizingrotating board subsequent to that in FIG. 10 (b);

FIG. 12 (a) is a view schematically illustrating the first piston magnetmember, the first fixed magnet member and the demagnetizing rotatingboard subsequent to those in FIG. 11 (a), FIG. 12 (b) is a viewschematically illustrating the principal part of the demagnetizingrotating board subsequent to that in FIG. 11 (b);

FIG. 13 (a) is a view schematically illustrating the first piston magnetmember, the first fixed magnet member and the demagnetizing rotatingboard subsequent to those in FIG. 12 (a), FIG. 13 (b) is a viewschematically illustrating the principal part of the demagnetizingrotating board subsequent to that in FIG. 12 (b);

FIG. 14 (a) is a view schematically illustrating the first piston magnetmember, the first fixed magnet member and the demagnetizing rotatingboard subsequent to those in FIG. 13 (a), FIG. 14 (b) is a viewschematically illustrating the principal part of the demagnetizingrotating board subsequent to that in FIG. 13 (b);

FIG. 15 (a) is an enlarged view of a part 25 a enclosed with dot line inFIG. 13 (a), FIG. 15 (b) is an enlarged view of a part 25 b enclosedwith dot line in FIG. 13 (a);

FIG. 16 (a) is a view schematically illustrating the first, secondpiston magnet members and the crankshaft, immediately after the first,second piston magnet members reached the top dead center, bottom deadcenter respectively, FIG. 16 (b) is a view schematically illustratingthe demagnetizing rotating board at that time;

FIG. 17 (a) is a view schematically illustrating the first, secondpiston magnet members and the crankshaft subsequent to those in FIG. 16(a), FIG. 17 (b) is a view schematically illustrating the demagnetizingrotating board subsequent to that in FIG. 16 (b);

FIG. 18 (a) is a view schematically illustrating the first, secondpiston magnet members and the crankshaft subsequent to those in FIG. 17(a), FIG. 18 (b) is a view schematically illustrating the demagnetizingrotating board subsequent to that in FIG. 17 (b);

FIG. 19 (a) is a view schematically illustrating the first, secondpiston magnet members and the crankshaft subsequent to those in FIG. 18(a), FIG. 19 (b) is a view schematically illustrating the demagnetizingrotating board subsequent to that in FIG. 18 (b);

FIG. 20 (a) is a view schematically illustrating the first, secondpiston magnet members and the crankshaft subsequent to those in FIG. 19(a), FIG. 20 (b) is a view schematically illustrating the demagnetizingrotating board subsequent to that in FIG. 19 (b);

FIG. 21 (a) is a perspective view illustrating a guide member accordingto a modified example with a part thereof omitted, FIG. 21 (b) is a planview of the demagnetizing member according to a modified example, FIG.21 (c) is a plan view of the demagnetizing member according to anothermodified example, FIG. 21 (d) is a plan view of the demagnetizing memberaccording to still another modified example;

FIG. 22 is a plan view, similar with FIG. 3, illustrating the rotarypower generating apparatus according to another modified example;

FIG. 23 is a plan view, similar with FIG. 3, illustrating the rotarypower generating apparatus according to still another modified example;

FIG. 24 is a view illustrating the conventional magnetic force movementapparatus;

FIG. 25 (a) is a view illustrating the conventional magnetic forceapplied power unit, FIG. 25 (b) is a view illustrating the circularshaped magnet;

FIG. 26 is a view illustrating the conventional power transmittingmachinery;

FIG. 27 is a view schematically illustrating the permanent magnet andlines of magnetic force appeared from it;

FIG. 28 is a view schematically illustrating the lines of magnetic forcewhen the fixed magnet and the piston magnet are opposing in parallel;and

FIG. 29 is a side elevation view of the rotary power generatingapparatus according to modified example of the present invention, seenfrom the direction along the crankshaft, with a part thereof omitted.

DESCRIPTION OF EMBODIMENTS

In the following, embodiments of the present invention will be describedwith reference to the drawings. Note that the same components will bereferred to with the same numerals or letters, while omitting theiroverlapping descriptions.

(Structure of Rotary Power Generating Apparatus)

To begin with, the structure of the rotary power generating apparatusaccording to the embodiment of the present invention will be explainedwith reference to FIG. 1 to FIG. 9.

Here, FIG. 1 is a perspective view illustrating the rotary powergenerating apparatus 100 according to the embodiment of the presentinvention, FIG. 2 is a sectional view of the rotary power generatingapparatus 100 taken along the line 2-2 in FIG. 1 and FIG. 3 is a planview illustrating the rotary power generating apparatus 100 which a lidpart 6 is removed. Further, FIG. 4 is a perspective view illustrating aprincipal part of a demagnetizing member 30 and crankshaft 11, FIG. 5(a) is a plan view illustrating the demagnetizing member 30, FIG. 5 (b)is a view illustrating a changing pattern of a demagnetizing magnet part38 and non-magnetic force part 39 in the demagnetizing member 30. FIG. 6is a sectional view of the demagnetizing member 30 taken along the line6-6 in FIG. 5 with a part of it omitted. FIG. 7 is a plan viewillustrating the rotary power generating apparatus 100 which the lidpart 6 and the demagnetizing member 30 are removed. FIG. 8 is aperspective view illustrating a first guide member 50, a first pistonmagnet member 60 and first fixed magnet member 70, with parts of themomitted. FIG. 9 is a side elevation view of an engine part 10, of thefirst piston magnet member 60 side, seen from a direction intersectingthe crankshaft 11.

The rotary power generating apparatus 100 has the first, second pistonmagnet members 60, 61, the first, second fixed magnet members 70, 71,which top pole surfaces 60 a, 61 a and fixed pole surfaces 70 a, 71 a,having magnetic poles with the same polarity, are arranged opposing eachother, and has a demagnetizing rotating board 32, having magnetic poleswith different polarity from the magnetic poles of the first, secondpiston magnet members 60, 61, which is arranged between the top polesurfaces 60 a, 61 a and the fixed pole surfaces 70 a, 71 a.

Then, in the rotary power generating apparatus 100, the first, secondpiston magnet members 60, 61 alternately approach to the first, secondfixed magnet members 70, 71, while reducing the repulsive force of thefirst piston magnet member 60 and the first fixed magnet member 70(hereinafter referred to as a “first repulsive force”) and repulsiveforce of the second piston magnet member 61 and the second fixed magnetmember 71 (hereinafter referred to as a “second repulsive force”) usinga demagnetizing rotating board 32 so that the first repulsive force andthe second repulsive force have different strength.

Note that the approach, of the first, second piston magnet members 60,61 to the first, second fixed magnet members 70, 71, is referred also as“progress”, the getting away, of the first, second piston magnet members60, 61 from the first, second fixed magnet members 70, 71, is referredalso as “regress”.

And, the second piston magnet members 61 is able to progress whilereducing the second repulsive force during the first piston magnetmember 60 regresses by the first repulsive force, after that, the firstpiston magnet member 60 is able to progress while reducing the firstrepulsive force during the second piston magnet member 61 regresses bythe second repulsive force.

Because the first, second piston magnet members 60, 61 are able torepeat the above-described regress and progress alternately, in therotary power generating apparatus 100, reciprocation of the first,second piston magnet members 60, 61 is able to be realized, and thecontinuity is able to be enhanced by using power of a later-describedstarter motor 14 a.

And, the structure of the rotary power generating apparatus 100 will beexplained as follows.

As illustrated in FIG. 1, FIG. 2, the rotary power generating apparatus100 has a housing 7, having a bottom part 1, a left wall part 2, a rightwall part 3, a front wall part 4, a back wall part 5 and the lid part 6.The engine part 10 is provided almost center of the housing 7. Thecrankshaft 11 of the engine part 10 passes through the left wall part 2,the right wall part 3 and a middle wall part 8 a, and a flywheel 12 isfixed to the outside part of the crankshaft 11 than the left wall part2. Further, a control panel 13 is fixed to outside part of the left wallpart 2. The control panel 13 includes a monitor 13 a, which displays anaction condition of various measuring instrument, such asnot-illustrated voltmeter, provided in the housing 7, a battery 13 b anda not-illustrated heat vent.

Further, a rotation sensor 11S is provided in a neighborhood of thecrankshaft 11 of the left wall part 2. The rotation sensor 11S isconnected to a later-described timer relay 13 c. The rotation sensor 11Sdetects the number of rotations of the crankshaft 11, and input thedetected number of rotations to the timer relay 13 c.

And the control panel 13 has at least the timer relay 13 c as theabove-described measuring instrument. The timer relay 13 c is connectedto the battery 13 b, rotation sensor 11S and later-described startermotor 14 a. An internal relay of the timer relay 13 c operates regularly(for example, in every several seconds). Further, the internal relayalso operates when the number of rotations of the crankshaft 11, inputfrom the rotation sensor 11S, become smaller than the number ofrotations which is set (set-up number of rotations). When the timerrelay 13 c operates, electric power is supplied to the later-describedstarter motor 14 a from the battery 13 b.

Further, the starter motor 14 a, a DC generator (dynamo) 14 b and motorgenerators 15 a, 15 b are fixed on the bottom part 1 in the housing 7.The starter motor 14 a and DC generator (dynamo) 14 b are connected tothe crankshaft 11 with a belt 16 a, motor generators 15 a, 15 b areconnected to the crankshaft 11 with a belt 16 b. The starter motor 14 ais connected to the battery 13 b. The DC generator (dynamo) 14 b is alsoconnected to the battery 13 b (line 14 c). The motor generators 15 a, 15b are connected to the output code (not illustrated).

The starter motor 14 a supplies rotary power to the crankshaft 11 viathe belt 16 a. The starter motor 14 a corresponds to an auxiliary motoraccording to the present invention. It is preferable that an assistmotor 14S is provided in addition to the starter motor 14 a, asillustrated in FIG. 3. The assist motor 14S is connected to the battery13 b (not illustrated). Further, the assist motor 14S, similar with thestarter motor 14 a, supplies rotary power to the crankshaft 11 via thebelt 16 a.

The engine part 10 has the crankshaft 11, the first, second guidemembers 50, 51, the first, second piston magnet members 60, 61, thefirst, second fixed magnet members 70, 71, the first, second connectingrods 80, 81 and the demagnetizing member 30.

The crankshaft 11 has the first, second crank parts 11 a, 11 c,connecting part 11 b, which connect the first crank part 11 a with thesecond crank part 11 c, and a bevel gear 11 d fixed on the connectingpart 11 b. The first, second connecting rods 80, 81 are connected withthe first, second crank parts 11 a, 11 c. Further, the crank angle ofthe first, second crank parts 11 a, 11 c is set up on 180 degrees.

The first guide member 50 has four holding members 50 a, as illustratedin FIG. 3, FIG. 8 and so on. The holding member 50 a, is an L-figurelike member in sectional view, has a length that can guide the firstpiston magnet member 60 during all process of reciprocation. Therespective holding member 50 a is arranged outside the corner part ofthe respective first piston magnet member 60 so as to surround the firstpiston magnet member 60, and they are fixed on the bottom part 1. Eachholding member 50 a is distant from another holding member 50 a to formgap parts 53 in the first guide member 50. Gap parts 53 are parts thatconnect inside of a rectangular parallel piped shaped space withoutside, the space is surrounded with four holding members 50 a. Gapparts 53 are formed in all range of reciprocation of the first, secondpiston magnet members 60, 61.

The second guide member 51 has the four holding members 51 a similarwith the holding members 50 a. The respective holding member 51 a isarranged outside the corner part of the respective second piston magnetmember 61 so as to surround the second piston magnet member 61, and theyare fixed on the bottom part 1. Gap parts, similar with the gap parts53, are also formed in the second guide member 51.

The first, second piston magnet members 60, 61 have size of beingaccommodated inside the first, second guide members 50, 51 respectively,and they are formed so as to reciprocate inside the first, second guidemembers 50, 51. Further, the first, second piston magnet members 60, 61are accommodated inside the first, second guide members 50, 51 so thatthe respective top pole surfaces 60 a, 61 a face the same direction(direction that they go toward the lid part 6, in this embodiment).

The first piston magnet member 60 (similar with the second piston magnetmember 61, not illustrated in FIG. 8, FIG. 9) has a holding case 63 anda permanent magnet 64, as illustrated in FIG. 8, FIG. 9, in detail. Theholding case 63 is a member, which aluminum board is bent so as to formapproximately C-figure like shape in the cross section, and it has asize being accommodated inside the first guide member 50 (a spacesurrounded by the four holding members 50 a). The permanent magnet 64 isa magnet having a size being fitted to the holding case 63 without gap,and it has an approximately rectangular parallel piped shape. Thepermanent magnet 64 is a magnet having an extremely strong magneticforce, for example neodymium magnet. The permanent magnet 64 isaccommodated in the holding case 63 so that polarity of the surface oftop dead center side (top pole surface 60 a) is N-pole, in thisembodiment. The permanent magnet 64 of the second piston magnet member61 is also accommodated in the holding case 63 so that polarity of thesurface of top dead center side (top pole surface 61 a) is N-pole.

About both of the first, second piston magnet members 60, 61, connectingparts 65 are formed on the crankshaft 11 side of the holding cases 63.The first, second connecting rods 80, 81 are connected with therespective connecting parts 65 so as to turn practicably.

The first fixed magnet member 70 (similar with the second fixed magnetmember 71, not illustrated in FIG. 8, FIG. 9) has a for-fixing holdingcase 73 and a permanent magnet 74, as illustrated in FIG. 8, FIG. 9, indetail. The for-fixing holding case 73 is a member having the same sizeand form with the holding case 63. The permanent magnet 74 is a magnethaving a size being fitted to the for-fixing holding case 73 withoutgap, and it has an approximately rectangular parallel piped shape. Thepermanent magnet 74 is, for example, the same neodymium magnet with thepermanent magnet 64. The permanent magnet 74 is accommodated in thefor-fixing holding case 73 so that the surface (fixed pole surface 70a), having the same polarity (N-pole, in this embodiment) with polarityof the top pole surface 60 a, oppose the top pole surface 60 a. Thepermanent magnet 74 of the second fixed magnet member 71 is alsoaccommodated in the for-fixing holding case 73 so that the fixed polesurface 71 a is N-pole.

Both the permanent magnet 74 and permanent magnet 64 are magnets havingextremely strong magnetic force, and because top pole surfaces 60 a, 61a and fixed pole surfaces 70 a, 71 a, having same polarity, oppose eachother, both the first repulsive force and second repulsive force areextremely strong.

Further, the first fixed magnet member 70 (similar with the second fixedmagnet member 71, not illustrated in FIG. 9) is fixed to the lid part 6with four adjusting members 75. Namely, screw parts 75 a of theadjusting members 75 are inserted to the lid part 6 from outside, andthey are screwed into the for-fixing holding case 73. When screwconditions of the screw parts 75 a are changed, they bring change ofslant of the first fixed magnet member 70 to the lid part 6, therebyslant of the fixed pole surface 70 a changes.

Further, an interval D2, arranged hindmost position along a rotatingdirection fa of the crankshaft 11, is spread than an interval D1 ofanother part (the hindmost position is referred to as a “hindmost part”in this embodiment, and it is a part illustrated with numeral 79, inFIG. 9, the interval in the hindmost part 79 is also referred hindmostpart interval), in the fixed pole surface 70 a and top pole surfaces 60a (similar with the fixed pole surface 71 a and top pole surface 61 a).

Thereby the rotary power generating apparatus 100 has a repulsive forceunequal structure, which the repulsive force between the top polesurface 60 a and the fixed pole surface 70 a at hindmost part 79 becomesweaker than the repulsive force in another part. Note that an anglebetween the fixed pole surface 70 a and the top pole surface 60 a is setpredetermined inclined angle α.

The first, second connecting rods 80, 81 are connected with the bottomdead center sides (connecting parts 65) of the above-described first,second piston magnet members 60, 61. Both of the first, secondconnecting rods 80, 81 are connected with the crankshaft 11. The first,second connecting rods 80, 81 are respectively connected with the first,second crank parts 11 a, 11 c of the crankshaft 11.

Next, the demagnetizing member 30 will be explained. The demagnetizingmember 30 is formed with non-magnetic material such as aluminum or thelike. The demagnetizing member 30 has a rotating shaft 31, thedemagnetizing rotating board 32 and a bevel gear 33, as illustrated inFIG. 4, FIG. 5(a), FIG. 6. The demagnetizing rotating board 32 is fixedto the top end part of the rotating shaft 31, and the bevel gear 33 isfixed to the bottom end part of the rotating shaft 31. The rotatingshaft 31 is inserted into a supporting part 8 b, via bearing, fixed tothe middle wall part 8 a. Note that the line 6-6 in FIG. 5 is supposedto be a center line through the center of the demagnetizing rotatingboard 32.

The demagnetizing rotating board 32 is a circular board having athickness being accommodated in a space between the top pole surfaces 60a, 61 a and fixed pole surfaces 70 a, 71 a, and it has a diametercapable of covering the top pole surfaces 60 a, 61 a, thereby it opposesall of the top pole surfaces 60 a, 61 a. The demagnetizing rotatingboard 32 has demagnetizing magnet parts 38 and non-magnetic force parts39 on both of the lower surface 32 a, opposing the top pole surfaces 60a, 61 a, and the upper surface 32 b, opposing the fixed pole surfaces 70a, 71 a.

The demagnetizing magnet parts 38 and non-magnetic force parts 39 areformed in circular band-shape which the rotating shaft 31 is a center(referred to as toroidal). The demagnetizing magnet parts 38 areassigned in an area having a slightly larger size than half-circularpart of the circular band-shaped part, the non-magnetic force parts 39are assigned in the remaining area having a slightly smaller size thanhalf-circular part. Thereby, the demagnetizing rotating board 32 isformed so that the non-magnetic force parts 39 oppose only one of thefirst, second piston magnet members 60, 61 and they do not oppose bothof the first, second piston magnet members 60, 61 in the same instant.

Further, the demagnetizing rotating board 32 is formed so thatdemagnetizing magnet parts 38 and non-magnetic force parts 39 arearranged in positions corresponding to the top pole surfaces 60 a, 61 aof the demagnetizing rotating board 32, and the width w38, along thesemidiameter direction, is almost the same size with the lateral widthof the top pole surfaces 60 a, 61 a or is slightly larger size than thelateral width.

Furthermore, the demagnetizing magnet parts 38 have magnetic forceswhich are weaker than magnetic poles of the top pole surfaces 60 a, 61 asides of the first, second piston magnet members 60, 61, and differentfrom polarity of the top pole surfaces 60 a, 61 a. In this embodiment,the polarity of the demagnetizing magnet parts 38 is set S-pole. Thedemagnetizing magnet parts 38 have magnetic forces weaker than thepermanent magnets 64, 74.

The demagnetizing magnet parts 38 have strong demagnetizing parts 35having the strongest magnetic force, weak demagnetizing parts 36 havingthe weakest magnetic force and middle demagnetizing parts 37 havingmiddle magnetic force of the strong demagnetizing parts 35 and the weakdemagnetizing parts 36. The strong demagnetizing parts 35, the middledemagnetizing parts 37 and the weak demagnetizing parts 36 are arrangedsequentially along the clockwise peripheral direction, in thedemagnetizing magnet parts 38.

Therefore, when the demagnetizing rotating board 32 rotates clockwise,as illustrated in FIG. 5 (b), because the weak demagnetizing parts 36,the middle demagnetizing parts 37 and the strong demagnetizing parts 35appear sequentially on the top pole surfaces 60 a, 61 a, the magneticforce of the demagnetizing magnet parts 38 changes to become stronggradually along the peripheral direction. The demagnetizing magnet parts38 have a magnetic force changing structure which the magnetic forcechanges in this manner. Further, the non-magnetic force parts 39 appearfollowing the demagnetizing magnet parts 38, the weak demagnetizingparts 36 appear afterward.

Further, the non-magnetic force parts 39 are parts of the circularband-shape part of the demagnetizing rotating board 32 along theperipheral direction, and they correspond to the parts between thestrong demagnetizing parts 35 and the weak demagnetizing parts 36. Thenon-magnetic force parts 39 are the parts which do not have magneticforce.

The bevel gear 11 d is engaged with the bevel gear 33. Therefore, therotating shaft 31 rotates in accordance with the rotation of thecrankshaft 11, thereby the demagnetizing rotating board 32 rotates. Thebevel gear 33 and the bevel gear 11 d are formed so that when thedemagnetizing rotating board 32 rotates in the rotating shaft 31 by onetime, the crankshaft 11 rotates one time, thereby the first, secondpiston magnet members 60, 61 reciprocate inside the first, second guidemembers 50, 51 (this will be explained later in detail).

Furthermore, the bevel gear 33 is engaged with the bevel gear 11 d sothat the rotary power generating apparatus 100 has the followingstructure. Therefore, the respective position of the bevel gear 33 andthe bevel gear 11 d are adjusted when the bevel gear 33 is engaged withthe bevel gear 11 d, in the rotary power generating apparatus 100. Thestructure is a structure which the second piston magnet member 61reaches the bottom dead center at the moment when the first pistonmagnet member 60 reaches the top dead center, immediately after that, ata first gap, the demagnetizing magnet parts 38 of the demagnetizingrotating board 32 changes to the non-magnetic force part 39, and theweak demagnetizing magnet parts 36 are arranged in a second gap(hereinafter this structure is also referred to as a “basic structure”).

Note that the first gap is a part between the first piston magnet member60 and the first fixed magnet member 70, and the second gap is a partbetween the second piston magnet member 61 and the second fixed magnetmember 71.

(Action Contents of the Rotary Power Generating Apparatus)

Next, action contents of the rotary power generating apparatus 100 willbe explained with reference to FIG. 10 to FIG. 20.

Here, FIG. 10 (a) is a view schematically illustrating the first pistonmagnet member 60, the first fixed magnet member 70 and the demagnetizingrotating board 32, immediately after the first piston magnet member 60reached the bottom dead center, FIG. 10 (b) is a view schematicallyillustrating a principal part of the demagnetizing rotating board 32 atthat time. FIG. 11 (a) to FIG. 13 (a) are views schematicallyillustrating the first piston magnet member 60, the first fixed magnetmember 70 and the demagnetizing rotating board 32 respectivelysubsequent to those in FIG. 10 (a) to FIG. 12 (a), FIG. 11 (b) to FIG.13 (b) are views schematically illustrating principal parts of thedemagnetizing rotating board 32 subsequent to that in FIG. 10 (b) toFIG. 12 (b).

FIG. 14 (a) is a view schematically illustrating the first piston magnetmember 60, the first fixed magnet member 70 and the demagnetizingrotating board 32 subsequent to those in FIG. 13 (a), FIG. 14 (b) is aview schematically illustrating the principal part of the demagnetizingrotating board 32 at that time. FIG. 15 (a) is an enlarged view of apart 25 a enclosed with dot line in FIG. 13 (a), FIG. 15 (b) is anenlarged view of a part 25 b enclosed with dot line in FIG. 13 (a).

Because the rotary power generating apparatus 100 has theabove-described structure, it operates as follows. For operating therotary power generating apparatus 100, first of all, not-illustratedpower switch is turned on to operate the starter motor 14 a. When thestarter motor 14 a operates using electric power stored in the battery13 b, power from the starter motor 14 a is transmitted to the crankshaft11 via the belt 16 a, thereby the crankshaft 11 rotates along adirection indicated by the arrow e11 in FIG. 2. With this motion, thefirst, second piston magnet members 60, 61 move inside the first, secondguide members 50, 51 via the first, second connecting rods 80, 81.Initial action is completed in this manner.

Note that because a not-illustrated overrunning clutch is provided withthe starter motor 14 a, power from the crankshaft 11 is not transmittedto the starter motor 14 a. The rotary power generating apparatus 100utilizes power from the starter motor 14 a in the above-describedinitial action, and it also utilizes power from the starter motor 14 aregularly (for example, in every several seconds) after the initialaction is completed. Further, the rotary power generating apparatus 100also utilizes power from the starter motor 14 a when the number ofrotations of the crankshaft 11 become smaller than the set-up number ofrotations. In these cases, the timer relay 13 c operates, thereby thestarter motor 14 a operates with supplied power from the battery 13 b,and power from the starter motor 14 a is transmitted to the crankshaft11. Actions of the rotary power generating apparatus 100 are, after theinitial action is completed, as follows.

Here, as illustrated in FIG. 10 (a), a condition, immediately after thefirst piston magnet member 60 reaches the bottom dead center, issupposed. At this time, because the crankshaft 11 tries to continue theformer rotation because of its inertia, the first piston magnet member60 tries to approach the first fixed magnet member 70.

At this time, the demagnetizing magnet parts 38 of the demagnetizingrotating board 32 appears in the first gap, at the timing that the firstpiston magnet member 60 reach the bottom dead center. Further, asillustrated in FIG. 10 (b), the weak demagnetizing parts 36 are stillarranged in the first gap, immediately after the first piston magnetmember 60 reach the bottom dead center. Because, the polarity of theweak demagnetizing parts 36 are different from the polarities of the toppole surface 60 a, the fixed pole surfaces 70 a, the weak demagnetizingparts 36 display demagnetizing operation to weaken the magnetic forcesemitted from the top pole surface 60 a, the fixed pole surface 70 a. Afirst repulsive force, which always operates between the first pistonmagnet member 60 and the first fixed magnet member 70, is reduced onlywith an attractive force f10, because of the demagnetizing operation.Thereby, the first piston magnet member 60 becomes easy to progress.

Next, as illustrated in FIG. 11 (a), the first piston magnet member 60progress, and in company with this action, as illustrated in FIG. 11(b), the weak demagnetizing parts 36 of the demagnetizing rotating board32 change to the middle demagnetizing parts 37, the middle demagnetizingparts 37 appear in the first gap. The first repulsive force increases inaccordance with the progress of the first piston magnet member 60though, the first repulsive force is reduced only with an attractiveforce f11, larger than the attractive force f10, in company with theswitch from the weak demagnetizing parts 36 to the middle demagnetizingparts 37. Therefore the first piston magnet member 60 progressescontinuously.

Subsequently, as illustrated in FIG. 12 (a), the first piston magnetmember 60 progress, and in company with this action, as illustrated inFIG. 12 (b), the middle demagnetizing parts 37 of the demagnetizingrotating board 32 change to the strong demagnetizing parts 35, thestrong demagnetizing parts 35 appear in the first gap. Therefore, thefirst repulsive force is reduced only with an attractive force f12,larger than the attractive force f11, the first piston magnet member 60progresses continuously.

Furthermore, the first piston magnet member 60 progresses. At this time,because the strong demagnetizing parts 35 are arranged in the first gap,the first repulsive force is reduced only with the attractive force f12.When the first piston magnet member 60 progresses continuously, afterthat, as illustrated in FIG. 13 (a), the first piston magnet member 60reaches the top dead center. At this time, as illustrated in FIG. 13(b), the strong demagnetizing parts 35 are still arranged in the firstgap.

Then, as illustrated in FIG. 14 (a), immediately after the first pistonmagnet member 60 reach the top dead center, the strong demagnetizingparts 35 of the demagnetizing rotating board 32 change to thenon-magnetic force parts 39 in the first gap, and the non-magnetic forceparts 39 are arranged in the first gap instead of the strongdemagnetizing parts 35.

Whereupon, the first repulsive force is reduced due to the demagnetizingoperations of the strong demagnetizing parts 35 until that time,reducing operation concerning the first repulsive force disappearssuddenly, due to the switching from the strong demagnetizing parts 35 tothe non-magnetic force parts 39. Therefore, as illustrated in FIG. 14(a), a mighty first repulsive force f14 revives suddenly between thefirst piston magnet member 60 and the first fixed magnet member 70. Thefirst piston magnet member 60 is push down strongly due to the firstrepulsive force f14, immediately after the reaching to the top deadcenter, and it regresses vigorously along to the direction illustratedf60.

Note that because the first connecting rod 80 extends straight when thefirst piston magnet member 60 reaches the top dead center, the firstpiston magnet member 60 is hard to regress even if the first repulsiveforce operates. It is preferable that the strong demagnetizing parts 35change to the non-magnetic force parts 39 immediately after the firstpiston magnet member 60 reach the top dead center, for easy regress ofthe first piston magnet member 60.

The action, from immediately after the first piston magnet member 60reaches the bottom dead center to immediately after the first pistonmagnet member 60 reaches the top dead center (referred to as an actionof half-process) is explained in the above. The action of half-processconcerning the first piston magnet member 60 is parallel with theregressive action of half-process of the second piston magnet member 61.

The first piston magnet member 60, the first fixed magnet member 70, andthe second piston magnet member 61, the second fixed magnet member 71perform the action of half-process alternately, in the rotary powergenerating apparatus 100. Subsequently, the action will be explainedwith reference to FIG. 16 to FIG. 20.

Here, FIG. 16 (a) is a view schematically illustrating the first, secondpiston magnet members 60, 61 and the crankshaft 11, immediately afterthe first, second piston magnet members 60, 61 reached the top deadcenter, bottom dead center respectively, FIG. 16 (b) is a viewschematically illustrating the demagnetizing rotating board 32 at thattime. FIG. 17 (a) to FIG. 20 (a) are views schematically illustratingthe first, second piston magnet members 60, 61 and the crankshaft 11respectively subsequent to those in FIG. 16 (a) to FIG. 19 (a), FIG. 17(b) to FIG. 20 (b) are views schematically illustrating thedemagnetizing rotating board 32 respectively subsequent to that in FIG.16 (b) to FIG. 19 (b).

Here, as illustrated in FIG. 16 (a), a condition, immediately after thefirst, second piston magnet members 60, 61 reach respectively the topdead center, the bottom dead center, is supposed. In this case, thebevel gear 33 is engaged with the bevel gear 11 d so that the rotarypower generating apparatus 100 has the above-described basic structure.Therefore, demagnetizing magnet parts 38 (strong demagnetizing parts 35)of the demagnetizing rotating board 32 change to the non-magnetic forceparts 39 in the first gap, and the weak demagnetizing parts 36 arearranged in the second gap. Accordingly, the first piston magnet member60 regresses vigorously along the direction illustrated f60, and thesecond piston magnet member 61 progresses due to the reducing of thesecond repulsive force.

Subsequently, as illustrated in FIG. 17 (a), the second piston magnetmember 61 progresses due to the reducing of the second repulsive forcecoincidentally with the vigor regress of the first piston magnet member60. When the action continues, as illustrated in FIG. 18 (a), the first,second crank parts 11 a, 11 c of the crankshaft 11 become parallel.

At this time, as illustrated in FIG. 18 (b), the non-magnetic forceparts 39 are arranged in the first gap, and the strong demagnetizingparts 35 are arranged in the second gap coincidentally. Therefore, thecrankshaft 11 rotates continuously so that the second piston magnetmember 61 progresses while the first piston magnet member 60 regress.Further, because the demagnetizing rotating board 32 keeps the samecondition, as illustrated in FIG. 19 (a), this condition also continuesafter that.

Whereupon, next time, as illustrated in FIG. 20 (a), the first pistonmagnet member 60 reaches the bottom dead center and the second pistonmagnet member 61 reaches the top dead center. Therefore, the first,second piston magnet members 60, 61 exchange the executed action ofhalf-process and continue the action.

As mentioned above, the first, second piston magnet members 60, 61continue the action of half-process repeatedly and alternately.Therefore, reciprocations of the first, second piston magnet members 60,61 are able to be realized, and the reciprocations are performedcontinuously with power of the starter motor 14 a, and the continuity ofthe reciprocation is able to be enhanced, in the rotary power generatingapparatus 100. The number of rotations of the crankshaft 11 reduces dueto influence of frictional force and so on that was caused by motions ofeach member such as the crankshaft 11, the first, second piston magnetmembers 60, 61 or the like. Whereupon, the reciprocation of the first,second piston magnet members 60, 61 are difficult to continue.Therefore, power of the starter motor 14 a is utilized in the rotarypower generating apparatus 100, as mentioned above.

Further, if the assist motor 14S is provided, continuity ofreciprocation of the first, second piston magnet members 60, 61 is ableto be enhanced with power of the assist motor 14S. In this case, becausethe electric power from the battery 13 b is supplied to the assist motor14S, the electric power stored in the battery 13 b is consumed. Thereby,extra charge of the battery 13 b is prevented.

Continuity of the reciprocation of the first, second piston magnetmembers 60, 61 brings continuity of the rotary motion of the crankshaft11 via the first, second connecting rods 80, 81. Whereupon, rotary powerof the crankshaft 11 is transmitted to the motor generators 15 a, 15 bvia belt 16 b, coils of the motor generators 15 a, 15 b rotate. Electricpower is obtained with the rotation of coils of the motor generators 15a, 15 b. This electric power is able to be taken outside withnot-illustrated out-put code.

(Operation and Effect of the Rotary Power Generating Apparatus)

As mentioned above, the polarity of magnetic pole of the top polesurfaces 60 a, 61 a equal to the polarity of magnetic pole of the fixedpole surfaces 70 a, 71 a, in the first, second piston magnet members 60,61 and the first, second, fixed magnet members 70, 71. Therefore, thefirst, second repulsive forces, which try to regress the first, secondpiston magnet members 60, 61 respectively, always operate to the first,second piston magnet members 60, 61 and the first, second fixed magnetmembers 70, 71.

However, the demagnetizing rotating board 32 is arranged in both of thefirst gap and the second gap. Demagnetizing magnet parts 38 are formedon the demagnetizing rotating board 32, and polarity of the magneticpower in the demagnetizing magnet parts 38 is different from thepolarity of magnetic poles in the top pole surfaces 60 a, 61 a, thefixed pole surfaces 70 a, 71 a.

Therefore, lines of magnetic forces, transmitted from the first, secondpiston magnet members 60, 61 and the first, second, fixed magnet members70, 71, are partially absorbed in the demagnetizing magnet parts 38.Whereupon, because lines of magnetic forces, contribute to repulsingbetween the top pole surfaces 60 a, 61 a and the fixed pole surfaces 70a, 71 a are reduced, magnetic forces, which bring the first, secondrepulsive forces, are reduced. Because the demagnetizing magnet parts 38exhibit the above-mentioned demagnetizing operation, which reduce themagnetic force, the first, second repulsive forces are reduced due tothe appearances of the demagnetizing magnet parts 38 in the first,second gaps.

Further, the demagnetizing rotating board 32 is formed so that thedemagnetizing magnet parts 38 and the non-magnetic force parts 39 arearranged adjacently, and the non-magnetic force parts 39 are arranged inonly one of the first, second gaps, in the rotary power generatingapparatus 100. When the demagnetizing rotating board 32 rotates, thenon-magnetic force parts 39 are arranged in only one of the first,second gaps, and they are never arranged in both of the first, secondgaps at the same time.

Therefore, the first, second repulsive force, without being reduced,never operate to the first, second piston magnet members 60, 61 at thesame time. If the first, second repulsive force, without being reduced,operate to the first, second piston magnet members 60, 61 at the sametime, both of the first, second piston magnet members 60, 61 try toregress, thereby there is the possibility which the reciprocation is notable to be obtained. However, the rotary power generating apparatus 100does not have the above possibility.

Because demagnetizing operation, by the demagnetizing magnet parts 38,operates at least one of the first, second repulsive forces, the secondpiston magnet member 61 progress easily when the first piston magnetmember 60 regress, and inversely, the first piston magnet member 60progress easily when the second piston magnet member 61 regress. Thefirst, second repulsive forces always operate to the first, secondpiston magnet members 60, 61 respectively, however, the first, secondrepulsive forces, having same strength, never operate to the first,second piston magnet members 60, 61 at the same time. Therefore, thefirst, second piston magnet members 60, 61 are able to be regressedalternately. Further, one of the first, second piston magnet members 60,61 regresses, after that the other regresses smoothly because of theinertia of the crankshaft 11. Therefore, the first, second piston magnetmembers 60, 61 regress continuously.

By the way, as the power transmitting machinery disclosed in the patentdocument 3, two magnets having different polarity approach to two pistonmagnets alternately, thereby the repulsive force and attractive forcebecome to operate alternately, in the conventional technology.

However, if once the piston magnets are kept away by the repulsiveforce, it is impossible that the piston magnets return to the originalposition with the attractive force, even if extremely powerful magnet isutilized. Namely, reciprocation of the piston magnet is not able to beobtained by operating the repulsive force and attractive force to thepiston magnet alternately.

On this point, only repulsive force operates to the first, second pistonmagnet members 60, 61, however the reciprocation is not able to beobtained by operating the repulsive force having same strength to them,so the rotary power generating apparatus 100 has the above-mentionedstructure in consideration of the above.

Namely, while one of the first, second piston magnet members 60, 61regress, progress of the other is supported due to the reducing therepulsive force, thereby the reciprocations of the piston magnets arerealized, further the reducing the repulsive force is performedalternately, furthermore power of the starter motor 14 a is utilized,thereby they make the reciprocation of the piston magnet memberssustainable, in the rotary power generating apparatus 100. Note thatthere is the possibility of the reducing operation to both of the first,second repulsive forces, according to the formation of the demagnetizingmagnet parts 38. In that case, it is sufficient that magnetic forces ofthe demagnetizing magnet parts 38, arranged in the respective first,second gaps, are different each other (for example, one is strongdemagnetizing part, the other is weak demagnetizing part, and so on).

The demagnetizing rotating board 32 is effective in reducing therepulsive force alternately. The demagnetizing rotating board 32 has asize covering the top pole surfaces 60 a, 61 a both of the first, secondpiston magnet members 60, 61, and it has the demagnetizing magnet parts38 and the non-magnetic force parts 39.

Therefore, reducing the repulsive force to the first, second pistonmagnet members 60, 61 are able to be performed alternately due to therotation of the demagnetizing rotating board 32. Accordingly, in therotary power generating apparatus 100, reciprocations of the first,second piston magnet members 60, 61 are able to be obtained, andutilizing the power of the starter motor 14 a makes the reciprocationsustainable, and the continuity is able to be enhanced. Thereby,continuous rotary power, which the crankshaft 11 rotates continuously,is able to be obtained.

Further, because magnetic forces of the demagnetizing magnet parts 38are weaker than magnetic forces of magnetic poles of the first, secondpiston magnet members 60, 61, the first, second repulsive forces areable to be kept, even if the lines of magnetic forces are absorbed bythe demagnetizing magnet parts 38.

Furthermore, because the demagnetizing magnet parts 38 and thenon-magnetic force parts 39 are formed in circular band-shape, thedemagnetizing magnet parts 38 and the non-magnetic force parts 39 areable to be arranged in the first, second gaps with the same size, evenif the demagnetizing rotating board 32 rotates.

On the other hand, the rotary power generating apparatus 100 has therepulsive force unequal structure concerning the first piston magnetmember 60, the first fixed magnet member 70 and the second piston magnetmember 61, the second fixed magnet member 71.

When the crankshaft 11 rotates, for example, as illustrated in FIG. 14(a), the first crank part 11 a inclines front side along to the rotatingdirection fa of the crankshaft 11, at the timing immediately after thefirst piston magnet member 60 reaches the top dead center. The firstrepulsive force always operates to the first piston magnet member 60.Therefore, the first repulsive force tries to regresses the first pistonmagnet member 60, even if the first piston magnet member 60 reaches thetop dead center and the first crank part 11 a rises vertically. However,moment is not able to be obtained, even if the repulsive force operates,when the first crank part 11 a rises vertically, therefore thecrankshaft 11 is difficult to rotate, accordingly the first pistonmagnet member 60 is difficult to regress.

However, in case of the repulsive force unequal structure, because therepulsive force of other part is more powerful than that of the hindmostpart 79, front side of the first piston magnet member 60 along to therotating direction of the crankshaft 11 is easy to regress, even if thefirst piston magnet member 60 reaches the top bottom center. Therefore,if the rotation of the crankshaft 11 continues due to its inertia toincline the first crank part 11 a in front side, the first piston magnetmember 60 is easy to regress, and the first piston magnet member 60 ismore easily to regress with disappearance of the reducing operation tothe repulsive force at the moment. Accordingly, continuity of thereciprocation, concerning the rotary power generating apparatus 100, isable to be more enhanced.

Further, because the demagnetizing magnet parts 38 have the magneticforce changing structure, when the demagnetizing rotating board 32rotates clockwise, the repulsive force reducing operation is improvedstepwise. Whereupon, the first, second repulsive force, which areimproved in accordance with the progresses of the first, second pistonmagnet members 60, 61, are able to be reduced stepwise. Therefore,regresses of one of the first, second piston magnet members 60, 61 andprogress of the other are performed surely, thereby the reciprocation isable to be performed surely.

Then the bevel gears 33, 11 d are formed so that the first, secondpiston magnet members 60, 61 reciprocate one time respectively insidethe first, second guide members 50, 51 during one rotation of thedemagnetizing rotating board 32. Therefore, one rotation of thedemagnetizing rotating board 32 is correlated with the half-process ofthe first piston magnet member 60 and the subsequent half-process of thesecond piston magnet member 61. Alternate regress of the first, secondpiston magnet members 60, 61 are able to obtained by the one rotation ofthe demagnetizing rotating board 32.

On the other hand, in the rotary power generating apparatus 100, the gapparts 53 are formed in the first, second guide members 50, 51.Frictional heat is generated due to friction with the first, secondpiston magnet members 60, 61 and the first, second guide members 50, 51with the reciprocation of the first, second piston magnet members 60,61. However, this frictional heat is able to be radiated outside of thefirst, second guide members 50, 51 from the gap parts 53.

In general, it is known that spontaneous magnetization of aferromagnetic body is decreased exponentially with temperatureincreasing, magnetic character of the ferromagnetic body will be lostwhen the temperature exceeds the Curie temperature. Therefore, whenfrictional heat is generated to be stored in first, second piston magnetmembers 60, 61, there is a possibility that the magnetic forces of thepermanent magnets 64, 74 are decreased. Whereupon, the first, secondrepulsive forces become weak, there is a possibility that reciprocationof the first, second piston magnet members 60, 61 is not able to berepeated.

Especially, as conventional technology, in case of where the pistonmagnet is accommodated inside the cylinder with a sealing up, frictionalheat, according to friction of the piston magnet and the cylinder, islikely to be filled inside the cylinder, therefore temperature of thepiston magnet is likely to be increased.

However, in case of the rotary power generating apparatus 100, becausethe gap parts 53 are formed in the first, second guide members 50, 51,heat such as frictional heat or the like is difficult to be filled.Accordingly, the decline of magnetic force of the permanent magnets 64,74 is able to be prevented, and reciprocation of the first, secondpiston magnet members 60, 61 is able to be continued.

Then, in case of the rotary power generating apparatus 100, inclinedangle of the fixed pole surfaces 70 a, 71 a, in the first, second fixedmagnet members 70, 71, is able to be adjusted with adjusting members 75.Therefore, even if the inclined angle of the fixed pole surfaces 70 a,71 a changes due to vibration or the like during operation, the inclinedangle is able to be adjusted.

Note that the rotary power generating apparatus 100 can generateelectric power by transmitting the above-described continuous rotarypower of the crankshaft 11 to the internal motor generators 15 a, 15 b,therefore it can be utilized as electric generating apparatus. Ofcourse, the rotary power can be utilized for other uses.

MODIFIED EXAMPLE 1

FIG. 21 (a) is a perspective view illustrating a guide member 54according to a modified example 1 with a part thereof omitted. The guidemember 54 has two holding members 55 having almost c-figure shape in itscross section. Each holding member 55 is arranged separately so that gapparts 55 a are formed. The guide member 54 can also guide first, secondpiston magnet members 60, 61, and radiate frictional heat to outside ofthe guide member 54, as the first, second guide members 50, 51.

Further, FIG. 21 (b) is a plan view of the demagnetizing member 40according to the modified example 1. The demagnetizing member 40 isdifferent from the demagnetizing member 30 in that the demagnetizingmember 40 has a demagnetizing rotating board 42 instead of thedemagnetizing rotating board 32. The demagnetizing rotating board 42 isdifferent from the demagnetizing rotating board 32 in that thedemagnetizing rotating board 42 has demagnetizing magnet parts 48instead of the demagnetizing magnet parts 38. The demagnetizing magnetparts 48 are different from the demagnetizing magnet parts 38 in thatthe demagnetizing magnet parts 48 have strong demagnetizing parts 45 andweak demagnetizing parts 46, do not have middle demagnetizing parts. Thestrong demagnetizing parts 45 have similar magnetic forces with thestrong demagnetizing parts 35, and they have larger size than the strongdemagnetizing parts 35. The weak demagnetizing parts 46 are similar withthe weak demagnetizing parts 36. The above-mentioned demagnetizingmagnet parts 48 have also the magnetic force changing structure whichthe magnetic force changes so as to become strong gradually along theperipheral direction, similar with the demagnetizing magnet parts 38.

A part, having no magnetic force, of circular band-shaped part which therotating shaft 31 is a center, is set as the non-magnetic force parts39, in the demagnetizing rotating board 32. In this case, a partcomposed of non-magnetic member is the non-magnetic force parts 39though, it is possible that circular band-shaped part is cut off fromthe demagnetizing rotating board 32 to form a hole part having circularband-shape and the hole part is set as the non-magnetic force parts 39.

Further, it is possible that the demagnetizing rotating board 72,illustrated in FIG. 21 (c), is able to be used instead of thedemagnetizing rotating board 32. The demagnetizing rotating board 82,illustrated in FIG. 21 (d), is able to be used instead of thedemagnetizing rotating board 32. The demagnetizing rotating board 72 isa board member, having almost half-size circular-shape, which a fan-likepart, including the non-magnetic force parts 39, is cut off.

The demagnetizing rotating board 82 has a plurality of bone parts 82 aextending radially from center part which the rotating shaft 31 isfixed, and the demagnetizing magnet parts 38 and non-magnetic forceparts 39 are formed on the plurality of bone parts 82 a. Further, spacesof adjacent bone parts 82 a are gap parts 82 b.

Note that the demagnetizing rotating board 82 includes a part composedof only a plurality of bone parts 82 a, which is not formed with aboard-like shape, however, a part, which the demagnetizing magnet parts38 are formed, is formed with a board-like shape. In this embodiment,not only the member, which the whole part is formed with a board-likeshape, such as the demagnetizing rotating board 32, but also the member,which the only one part is formed with a board-like shape such as thedemagnetizing rotating board 82, are included in the demagnetizingrotating board.

The demagnetizing rotating boards 72, 82 have shapes which parts ofdemagnetizing magnet part 38 oppose at least one of the top polesurfaces 60 a, 61 a. Further, because the demagnetizing rotating boards72, 82 are lighter than the demagnetizing rotating board 32, they can berotated with lower energy than the demagnetizing rotating board 32.

MODIFIED EXAMPLE 2

Subsequently, the rotary power generating apparatus 200, according tothe modified example 2 will be explained with reference to FIG. 22. Therotary power generating apparatus 200 is different from theabove-described the rotary power generating apparatus 100 in that therotary power generating apparatus 200 has the engine part 110, motorgenerators 15 c, 15 d and belt 16 c.

The engine part 110 has, similar with the above-described engine part10, the crankshaft 11, the first, second guide members 50, 51, thefirst, second piston magnet members 60, 61, the first, second fixedmagnet members 70, 71, the first, second connecting rods 80, 81 and thedemagnetizing member 30. Further, the motor generators 15 c, 15 d haverespectively common structure with the above-described motor generators15 a, 15 b. The belt 16 c has a common structure with the belt 16 b.

Both of the engine part 10 and the engine part 110 of the rotary powergenerating apparatus 200 have respectively the crankshaft 11, thecrankshaft 11 in the engine part 10, the crankshaft 11 in the enginepart 110 constitute the one common crankshaft 11A, being common to bothof them. Further, phases of the first, second piston magnet members 60,61, in the respective engine parts 10, 110, are common each other.

Rotary power of the crankshaft 11 is obtained from reciprocation of thefirst, second piston magnet members 60, 61 in the engine part 10, incase of the above-described rotary power generating apparatus 100.

On the other hand, in case of the rotary power generating apparatus 200,the reciprocation of the first, second piston magnet members 60, 61 inthe engine part 10 and the reciprocation of the first, second pistonmagnet members 60, 61 in the engine part 110 are performed withoverlapping, the overlapping reciprocation rotates the crankshaft 11(common crankshaft 11A). Therefore, rotary power of the crankshaft 11(common crankshaft 11A) become more powerful than that of the rotarypower generating apparatus 100.

MODIFIED EXAMPLE 3

Subsequently, the rotary power generating apparatus 201, according tothe modified example 3 will be explained with reference to FIG. 23. Therotary power generating apparatus 201 is different from theabove-described the rotary power generating apparatus 100 in that therotary power generating apparatus 201 has the engine part 120, motorgenerators 15 c, 15 d and belt 16 c.

The engine part 120 is different from the above-described engine part 10in that the engine part 120 does not have the second guide member 51,the second piston magnet member 61, the second fixed magnet member 71and the second connecting rod 81. Further, the motor generators 15 c, 15d have respectively common structures with the above-described motorgenerators 15 a, 15 b. The belt 16 c has a common structure with thebelt 16 b.

The rotary power generating apparatus 201 has also the one commoncrankshaft 11A, constituted of the crankshaft 11 in two engine parts 10,210, similar with the rotary power generating apparatus 200. Further,phases of the first piston magnet members 60 in the respective engineparts 10, 110 are common each other.

In case of the rotary power generating apparatus 201, the reciprocationof the first piston magnet member 60 in the engine part 10 and thereciprocation of the first piston magnet member 60 in the engine part120 are performed with overlapping, the overlapping reciprocationrotates the crankshaft 11 (common crankshaft 11A). Therefore, rotarypower of the crankshaft 11 (common crankshaft 11A) become more powerfulthan that of the rotary power generating apparatus 100.

MODIFIED EXAMPLE 4

Subsequently, the rotary power generating apparatus 202, according tothe modified example 4 will be explained with reference to FIG. 29. FIG.29 is a side elevation view of the rotary power generating apparatus 202according to modified example, seen from the direction along thecrankshaft 11. In case of the rotary power generating apparatus 100,although the first, second guide members 50, 51 are arranged along thecrankshaft 11 in series, in case of the rotary power generatingapparatus 202, the first, second guide members 50, 51 are arranged withv-figure shape which forms a predetermined guide angle β along thecrankshaft 11.

Then, the rotary power generating apparatus 202 has a slant lid part 76which ascends from the side surface to the center, the first, secondfixed magnet members 70, 71, similar with the rotary power generatingapparatus 100, are fixed on the slant lid part 76. Further, the first,second guide members 50, 51 and the first, second piston magnet members60, 61 are arranged so as to go toward the first, second fixed magnetmembers 70, 71.

The rotary power generating apparatus 202 has the demagnetizing member30 with the above-mentioned the first, second guide members 50, 51, thefirst, second piston magnet members 60, 61 and the first, second fixedmagnet members 70, 71. Therefore, the first, second piston magnetmembers 60, 61 perform the action of the half-process, having differentdirection, similar with the rotary power generating apparatus 100, therotary power generating apparatus 202 shows the same operation andeffect with the the rotary power generating apparatus 100.

The above description is a description concerning embodiments of thepresent invention, do not limit the apparatus and method of the presentinvention, and various modified examples can be carried out easily.Further, an apparatus or method constituted from proper combining ofconstitution elements, function, character, method or step in eachembodiment, are included in the present invention,

For example, the present invention includes not only the case having twomotion units, including piston magnet member, fixed magnet member, guidemember and connecting rod, like the rotary power generating apparatus100, four motion units, three motion units, like the rotary powergenerating apparatus 200, 201, but also the case having five motionunits, six motion units, more than motion units.

INDUSTRIAL APPLICABILITY

Application of the present invention provides reciprocations of thepiston magnets surely and enhance the continuity, thereby the continuousrotary power is able to be obtained. The present invention is able toutilize in a field of the rotary power generating apparatus and electricgenerating apparatus which utilize it.

REFERENCE SIGNS LIST

10, 110, 120 . . . engine part, 11 . . . crankshaft, 11A . . . commoncrankshaft, 11 d, 33 . . . bevel gear, 15 a, 15 b . . . motor generator,30 . . . demagnetizing member, 31 . . . rotating shaft, 32, 72, 82 . . .demagnetizing rotating board, 32 a . . . Slower surface, 32 b . . .Supper surface, 35, 45 . . . strong demagnetizing part, 37 . . . middledemagnetizing part, 36, 46 . . . weak demagnetizing part, 38, 48 . . .demagnetizing magnet part, 39 . . . non-magnetic force part, 50 . . .first guide member, 51 . . . second guide member, 53 . . . gap part, 60. . . first piston magnet member, 61 . . . second piston magnet member,60 a, 61 a . . . top pole surface, 63 . . . holding case, 64, 74 . . .permanent magnet, 70 . . . first fixed magnet member, 70 a, 71 a . . .fixed pole surface, 71 . . . second fixed magnet member, 73 . . .for-fixing holding case, 75 . . . adjusting member, 79 . . . hindmostpart, 80 . . . first connecting rod, 81 . . . second connecting rod,100, 200, 201, 202 . . . rotary power generating apparatus.

The invention claimed is:
 1. A rotary power generating apparatuscomprising: a first piston magnet member and a second piston magnetmember arranged so that their polarities of magnetic poles of top polesurfaces of a top dead center side are equal; a first connecting rod anda second connecting rod connected with the bottom dead center side ofthe respective first, second piston magnet members; a crankshaftconnected with the first, second connecting rods; a first guide memberand a second guide member, which hold respectively the first, secondpiston magnet members from outside and guide the respective first,second piston magnet members during all process of reciprocation; afirst fixed magnet member and a second fixed magnet member fixed on thepositions to keep a constant interval from the top pole surfaces of therespective first, second piston magnet members, and in which fixed polesurfaces, having the same polarity with the magnetic pole of the toppole surfaces, are arranged so as to oppose the top pole surfaces of therespective first, second piston magnet members; and a demagnetizingmember arranged between the top pole surfaces of the first, secondpiston magnet members and the fixed pole surfaces of the first, secondfixed magnet members, and having a demagnetizing rotating board opposingthe top pole surfaces both of the first, second piston magnet members,wherein the demagnetizing rotating board comprises demagnetizing magnetparts and non-magnetic force parts arranged both of a lower surfaceopposing the top pole surfaces and upper surface opposing the fixed polesurfaces, wherein demagnetizing magnet parts having magnetic forceweaker than the magnetic poles of the first, second piston magnetmembers and having different polarity from the top pole surfaces,wherein the non-magnetic force parts, having no magnetic force, areformed adjacent to the demagnetizing magnet parts, and oppose to onlyone of the first, second piston magnet members; wherein the rotary powergenerating apparatus comprising: a repulsive force unequal structurewhich a hindmost interval, arranged hindmost position along a rotatingdirection which the crankshaft rotates, is spread than an interval ofanother part to weaken a repulsive force repulsing the top pole surfacesand the fixed pole surfaces in the hindmost position than the repulsiveforce in another part, in the top pole surfaces of the respective first,second piston magnet members and the fixed pole surfaces of therespective first, second fixed magnet members; wherein the rotary powergenerating apparatus further comprising: an auxiliary motor supplyingpower to the crankshaft so that reciprocation of the first, secondpiston magnet members become continuous; wherein the demagnetizingmagnet parts comprises a strong demagnetizing part having a strongestmagnetic force, a weak demagnetizing part having a weakest magneticforce, a middle demagnetizing part having magnetic force in the middleof the strong demagnetizing part and the weak demagnetizing part, and amagnetic force changing structure which the strong demagnetizing part,middle demagnetizing part and weak demagnetizing part are arrangedsequentially along the rotating direction of the demagnetizing rotatingboard so that the magnetic force changes to become strong graduallyalong the peripheral direction, and wherein the demagnetizing rotatingboard is formed so that the strong demagnetizing part and thenon-magnetic force part oppose respectively one of the first, secondpiston magnet members.
 2. The rotary power generating apparatusaccording to claim 1, wherein the demagnetizing member has a rotatingshaft rotates the demagnetizing rotating board around the center,wherein the demagnetizing member comprises bevel gears formed on theedge part of the rotating shaft and the crankshaft respectively, and thebevel gears engage with each other, wherein the bevel gears are formedso that the first, second piston magnet members reciprocate respectivelyinside the first, second guide members during one rotating of thedemagnetizing rotating board in the rotating shaft; wherein the bevelgear of the demagnetizing member engages with the bevel gear of thecrankshaft so that the second piston magnet member reaches the bottomdead center at the moment when the first piston magnet member reachesthe top dead center, and immediately after that, in the demagnetizingrotating board, a part between the first piston magnet member and thefirst fixed magnet member changes from the demagnetizing magnet parts tothe non-magnetic force parts, and the demagnetizing magnet parts arearranged between the second piston magnet member and the second fixedmagnet member.
 3. The rotary power generating apparatus according toclaim 1, wherein the first, second guide members have a gap part,connecting inside with outside, formed in all range of reciprocation ofthe first, second piston magnet members.
 4. The rotary power generatingapparatus according to claim 1, wherein the demagnetizing rotating boardcomprises a circular band-shaped structure which the demagnetizingmagnet parts and the non-magnetic force parts are formed in circularband-shape.
 5. The rotary power generating apparatus according to claim1, wherein the first, second piston magnet members respectivelycomprises holding cases having a size of being accommodated inside thefirst, second guide members, and permanent magnets being fitted insidethe holding cases without gap, wherein the first, second fixed magnetmembers respectively comprises for-fixing holding cases having the samesize with the holding cases, and permanent magnets being fitted insidethe for-fixing holding cases without gap, wherein the first, secondfixed magnet members are fixed with a adjusting member for adjusting amounting state of the for-fixing holding cases.
 6. The rotary powergenerating apparatus according to claim 1, wherein the rotary powergenerating apparatus comprising: a first engine part, second engine partrespectively having the first, second guide members, the first, secondpiston magnet members, the first, second fixed magnet members, thefirst, second connecting rods, the demagnetizing member and thecrankshaft, the crankshaft of the first engine part and the crankshaftof the second engine part are formed with a common crankshaft beingcommon to the first, second engine part.
 7. An electric generatingapparatus comprising: a rotary power generating apparatus; and agenerator, which generates an electric power with a rotary powergenerated by the rotary power generating apparatus, wherein the rotarypower generating apparatus comprising: a first piston magnet member anda second piston magnet member arranged so that their polarities ofmagnetic poles of top pole surfaces of a top dead center side are equal;a first connecting rod and a second connecting rod connected with thebottom dead center side of the respective first, second piston magnetmembers; a crankshaft connected with the first, second connecting rods;a first guide member and a second guide member, which hold respectivelythe first, second piston magnet members from outside and guide therespective first, second piston magnet members during all process ofreciprocation; a first fixed magnet member and a second fixed magnetmember fixed on the positions to keep a constant interval from the toppole surfaces of the respective first, second piston magnet members, andin which fixed pole surfaces, having the same polarity with the magneticpole of the top pole surfaces, are arranged so as to oppose the top polesurfaces of the respective first, second piston magnet members; and ademagnetizing member arranged between the top pole surfaces of thefirst, second piston magnet members and the fixed pole surfaces of thefirst, second fixed magnet members, and having a demagnetizing rotatingboard opposing the top pole surfaces both of the first, second pistonmagnet members, wherein the demagnetizing rotating board comprisesdemagnetizing magnet parts and non-magnetic force parts arranged both ofa lower surface opposing the top pole surfaces and upper surfaceopposing the fixed pole surfaces, wherein the demagnetizing magnet partshave magnetic forces weaker than the magnetic poles of the first, secondpiston magnet members and having different polarity from the top polesurfaces, wherein the non-magnetic force parts, having no magneticforce, are formed adjacent to the demagnetizing magnet parts, and opposeto only one of the first, second piston magnet members; wherein therotary power generating apparatus comprising: a repulsive force unequalstructure which a hindmost interval, arranged hindmost position along arotating direction which the crankshaft rotates, is spread than aninterval of another part to weaken a repulsive force repulsing the toppole surfaces and the fixed pole surfaces in the hindmost position thanthe repulsive force in another part, in the top pole surfaces of therespective first, second piston magnet members and the fixed polesurfaces of the respective first, second fixed magnet members; whereinthe rotary power generating apparatus further comprising: an auxiliarymotor supplying power to the crankshaft so that reciprocation of thefirst, second piston magnet members become continuous; wherein thedemagnetizing magnet parts comprises a strong demagnetizing part havinga strongest magnetic force, a weak demagnetizing part having a weakestmagnetic force, a middle demagnetizing part having magnetic force in themiddle of the strong demagnetizing part and the weak demagnetizing part,and a magnetic force changing structure which the strong demagnetizingpart, middle demagnetizing part and weak demagnetizing part are arrangedsequentially along the rotating direction of the demagnetizing rotatingboard so that the magnetic force changes to become strong graduallyalong the peripheral direction, and wherein the demagnetizing rotatingboard is formed so that the strong demagnetizing part and thenon-magnetic force part oppose respectively one of the first, secondpiston magnet members.